This document discusses strategies for making homes more energy efficient. It outlines both passive strategies, such as improved insulation, windows and air sealing, which reduce energy consumption without using additional energy sources, as well as active strategies like solar collectors and temperature zoning, which require electricity but lower overall energy usage. Residential buildings account for over half of total energy consumption, with space heating as the largest use. The document promotes events to retrofit homes with more efficient windows, insulation, ventilation and solar technologies to cut energy bills and emissions over the long run. It provides an example project in Denmark called "Home for Life" that is designed to pay for itself within 40 years through significant excess energy savings.

1. ENERGY EFFICIENT HOMES
AND SMART SYSTEMS
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2. AGENDA
Meaning of energy efficient buildings
Passive and active strategies
Reduction of demand for heating of premises
Energy saving events
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3. WHAT IS ENERGY
EFFICIENCY IN A
BUILDING?
Long-term energy and cost savings
Lower emissions and overall
environmental impact
Better thermal comfort
Improved comfort and health
Benefits:
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4. RESIDENTIAL
ENERGY
CONSUMPTION
58% 25% 3%
selecting high-performance insulation materials and
windows
ensuring the integrity of the building walls with minimal
air leakage
active strategies (temperature zoning)
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Space heating Lighting
Hot water
Source: CENEf’s estimates.
REDUCTION OF DEMAND FOR HEATING OF PREMISES

5. PASSIVE AND ACTIVE
STRATEGIES
without additional sources of
energy
example: thermal insulation
PASIVE
needs to consume some
electricity
example: solar collector
ACTIVE
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6. ENERGY SAVING
EVENTS
Replacement of old windows with fiberglass that provides
improved heat insulation.
Additional insulation of external fencing structures and attic.
Mechanical ventilation devices with heat recovery (efficiency
of 80 %) and low energy consumption (35-50 Wh per
apartment).
Application of "solar" walls for heating of air ventilation
system.
Installation of solar collectors on the roof for hot water
supply.
Use of low-temperature radiators for heating of premises.
Glazing of balconies.
Installation of a new water saving fittings.
Use of a control and management system.
Modernization of buildings.
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7. "HOME FOR LIFE" , DENMARK
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8. HOME FOR LIFE
Estimated excess energy is about 9 kW/m2, which will
allow to pay off all costs for building in 40 years.
The main architectural idea of "home for life" is a
harmonious combination of comfort and energy
saving.
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9. USION CONCLUSION
CONCLUSION
01 02 03
The potential for energy-
resource saving is huge.
Worldwide experience
demonstrates that there is a real
possibility of reducing energy
consumption in half.
The increase in energy efficiency of the
construction complex is only possible
through the combination of works
related to energy efficiency in the
building, and works to ensure energy
efficiency in the heat supply systems of
buildings.
Measures can be divided into active and
passive. With passive strategies, one
reduces power consumption without
spending electricity. In contrast, an active
strategy will reduce the footprint by
spending electricity.
CONCLU
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10. THANK YOU
Z H I T T S O V A E K A T E R I N A